Tombak/brass based and in a very good, probably unworn condition with all of the matt silver plate still present. The rims burnished and the enamel without damage.
Not marked but a known variation. On ribbon with pin.
The fitting case in a good, slightly used condition. Embossed in silver on top of the lid with „25“ in a cog wheel. Inside of the lid a sticker with the maker „Friedrich Keller Metallschmuckfabrik Oberstein“.

Tombak/brass based and in an excellent, nearly like new condition with all of the matt silver plate still present, the rims burnished and all with some patina. The enamel without damage. On ribbon with pin.
Not marked but a known variation.
The fitting case in a very good, also nearly like new condition. Embossed in silver on top of the lid with „25“ in a cog wheel. Inside of the lid a sticker with the maker „Friedrich Keller Metallschmuckfabrik Oberstein“.